/Engine/Plugins/Animation/IKRig/Source/IKRig/Public/ActorComponents/IKRigComponent.h
Set an IK Rig Goal transform (assumed in Component Space of Skeletal Mesh) with separate alpha values.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=IKRigGoals) void SetIKRigGoalTransform ( const [FName](API\Runtime\Core\UObject\FName) GoalName, const FTransform Transform, const float PositionAlpha, const float RotationAlpha )